S09E21: If I Had A Hammer
Catherine revisits one of the very first cases she worked as a CSI when the convicted felon in the murder claims the verdict was based on faulty evidence.
Previous Episode 
Season 1
Pilot
S1E1 / 06 Oct 2000
Cool Change
S1E2 / 13 Oct 2000
Crate 'n Burial
S1E3 / 20 Oct 2000
Pledging Mr. Johnson
S1E4 / 27 Oct 2000
Friends & Lovers
S1E5 / 03 Nov 2000
Who Are You?
S1E6 / 10 Nov 2000
Blood Drops
S1E7 / 17 Nov 2000
Anonymous
S1E8 / 24 Nov 2000
Unfriendly Skies
S1E9 / 08 Dec 2000
Sex, Lies and Larvae
S1E10 / 22 Dec 2000
I-15 Murders
S1E11 / 12 Jan 2001
Fahrenheit 932
S1E12 / 01 Feb 2001
Boom
S1E13 / 08 Feb 2001
To Halve and to Hold
S1E14 / 15 Feb 2001
Table Stakes
S1E15 / 22 Feb 2001
Too Tough to Die
S1E16 / 01 Mar 2001
Face Lift
S1E17 / 08 Mar 2001
$35K O.B.O.
S1E18 / 29 Mar 2001
Gentle, Gentle
S1E19 / 12 Apr 2001
Sounds of Silence
S1E20 / 19 Apr 2001
Justice is Served
S1E21 / 26 Apr 2001
Evaluation Day
S1E22 / 10 May 2001
Strip Strangler
S1E23 / 17 May 2001
Season 2
Burked
S2E1 / 27 Sep 2001
Chaos Theory
S2E2 / 04 Oct 2001
Overload
S2E3 / 11 Oct 2001
Bully for You
S2E4 / 18 Oct 2001
Scuba Doobie-Doo
S2E5 / 25 Oct 2001
Alter Boys
S2E6 / 01 Nov 2001
Caged
S2E7 / 07 Nov 2001
Slaves of Las Vegas
S2E8 / 14 Nov 2001
And Then There Were None
S2E9 / 21 Nov 2001
Ellie
S2E10 / 05 Dec 2001
Organ Grinder
S2E11 / 12 Dec 2001
You've Got Male
S2E12 / 19 Dec 2001
Identity Crisis
S2E13 / 17 Jan 2002
The Finger
S2E14 / 31 Jan 2002
Burden of Proof
S2E15 / 07 Feb 2002
Primum Non Nocere
S2E16 / 28 Feb 2002
Felonious Monk
S2E17 / 06 Mar 2002
Chasing The Bus
S2E18 / 28 Mar 2002
Stalker
S2E19 / 04 Apr 2002
Cats in the Cradle
S2E20 / 24 Apr 2002
Anatomy of a Lye
S2E21 / 01 May 2002
Cross Jurisdictions
S2E22 / 08 May 2002
The Hunger Artist
S2E23 / 15 May 2002
Season 3
Revenge Is Best Served Cold
S3E1 / 25 Sep 2002
The Accused Is Entitled
S3E2 / 02 Oct 2002
Let the Seller Beware
S3E3 / 09 Oct 2002
A Little Murder
S3E4 / 16 Oct 2002
Abra-Cadaver
S3E5 / 30 Oct 2002
The Execution of Catherine Willows
S3E6 / 06 Nov 2002
Fight Night
S3E7 / 13 Nov 2002
Snuff
S3E8 / 20 Nov 2002
Blood Lust
S3E9 / 04 Dec 2002
High and Low
S3E10 / 11 Dec 2002
Recipe for Murder
S3E11 / 09 Jan 2003
Got Murder?
S3E12 / 16 Jan 2003
Random Acts of Violence
S3E13 / 30 Jan 2003
One Hit Wonder
S3E14 / 06 Feb 2003
Lady Heather's Box
S3E15 / 13 Feb 2003
Lucky Strike
S3E16 / 20 Feb 2003
Crash and Burn
S3E17 / 12 Mar 2003
Precious Metal
S3E18 / 02 Apr 2003
A Night at the Movies
S3E19 / 09 Apr 2003
Last Laugh
S3E20 / 23 Apr 2003
Forever
S3E21 / 30 Apr 2003
Play with Fire
S3E22 / 07 May 2003
Inside the Box
S3E23 / 14 May 2003
Season 4
Assume Nothing (1)
S4E1 / 24 Sep 2003
All for Our Country (2)
S4E2 / 01 Oct 2003
Homebodies
S4E3 / 08 Oct 2003
Feeling the Heat
S4E4 / 22 Oct 2003
Fur and Loathing
S4E5 / 29 Oct 2003
Jackpot
S4E6 / 05 Nov 2003
Invisible Evidence
S4E7 / 12 Nov 2003
After the Show
S4E8 / 19 Nov 2003
Grissom Versus the Volcano
S4E9 / 10 Dec 2003
Coming of Rage
S4E10 / 17 Dec 2003
Eleven Angry Jurors
S4E11 / 08 Jan 2004
Butterflied
S4E12 / 15 Jan 2004
Suckers
S4E13 / 05 Feb 2004
Paper or Plastic
S4E14 / 12 Feb 2004
Early Rollout
S4E15 / 19 Feb 2004
Getting Off
S4E16 / 26 Feb 2004
XX
S4E17 / 04 Mar 2004
Bad to the Bone
S4E18 / 01 Apr 2004
Bad Words
S4E19 / 15 Apr 2004
Dead Ringer
S4E20 / 29 Apr 2004
Turn of the Screws
S4E21 / 06 May 2004
No More Bets
S4E22 / 13 May 2004
Bloodlines
S4E23 / 20 May 2004
Season 5
Viva Las Vegas
S5E1 / 23 Sep 2004
Down the Drain
S5E2 / 07 Oct 2004
Harvest
S5E3 / 14 Oct 2004
Crow's Feet
S5E4 / 21 Oct 2004
Swap Meet
S5E5 / 28 Oct 2004
What's Eating Gilbert Grissom?
S5E6 / 04 Nov 2004
Formalities
S5E7 / 11 Nov 2004
Ch-Ch-Changes
S5E8 / 18 Nov 2004
Mea Culpa
S5E9 / 25 Nov 2004
No Humans Involved
S5E10 / 09 Dec 2004
Who Shot Sherlock?
S5E11 / 06 Jan 2005
Snakes
S5E12 / 13 Jan 2005
Nesting Dolls
S5E13 / 03 Feb 2005
Unbearable
S5E14 / 10 Feb 2005
King Baby
S5E15 / 17 Feb 2005
Big Middle
S5E16 / 24 Feb 2005
Compulsion
S5E17 / 10 Mar 2005
Spark of Life
S5E18 / 31 Mar 2005
4 x 4
S5E19 / 14 Apr 2005
Hollywood Brass
S5E20 / 21 Apr 2005
Committed
S5E21 / 28 Apr 2005
Weeping Willows
S5E22 / 05 May 2005
Iced
S5E23 / 12 May 2005
Grave Danger (1)
S5E24 / 19 May 2005
Grave Danger (2)
S5E25 / 19 May 2005
Season 6
Bodies in Motion
S6E1 / 22 Sep 2005
Room Service
S6E2 / 29 Sep 2005
Bite Me
S6E3 / 06 Oct 2005
Shooting Stars
S6E4 / 13 Oct 2005
Gum Drops
S6E5 / 20 Oct 2005
Secrets and Flies
S6E6 / 03 Nov 2005
A Bullet Runs Through It (1)
S6E7 / 10 Nov 2005
A Bullet Runs Through It (2)
S6E8 / 17 Nov 2005
Dog Eat Dog
S6E9 / 24 Nov 2005
Still Life
S6E10 / 08 Dec 2005
Werewolves
S6E11 / 05 Jan 2006
Daddy's Little Girl
S6E12 / 19 Jan 2006
Kiss-Kiss, Bye-Bye
S6E13 / 26 Jan 2006
Killer
S6E14 / 02 Feb 2006
Pirates of the Third Reich
S6E15 / 09 Feb 2006
Up In Smoke
S6E16 / 02 Mar 2006
I Like To Watch
S6E17 / 09 Mar 2006
The Unusual Suspect
S6E18 / 30 Mar 2006
Spellbound
S6E19 / 06 Apr 2006
Poppin' Tags
S6E20 / 13 Apr 2006
Rashomama
S6E21 / 27 Apr 2006
Time Of Your Death
S6E22 / 04 May 2006
Bang-Bang (1)
S6E23 / 11 May 2006
Way To Go (2)
S6E24 / 18 May 2006
Season 7
Built to Kill (1)
S7E1 / 21 Sep 2006
Built to Kill (2)
S7E2 / 28 Sep 2006
Toe Tags
S7E3 / 05 Oct 2006
Fannysmackin'
S7E4 / 12 Oct 2006
Double-Cross
S7E5 / 19 Oct 2006
Burn Out
S7E6 / 02 Nov 2006
Post Mortem
S7E7 / 09 Nov 2006
Happenstance
S7E8 / 16 Nov 2006
Living Legend
S7E9 / 23 Nov 2006
Loco Motives
S7E10 / 07 Dec 2006
Leaving Las Vegas
S7E11 / 04 Jan 2007
Sweet Jane
S7E12 / 18 Jan 2007
Redrum
S7E13 / 25 Jan 2007
Meet Market
S7E14 / 01 Feb 2007
Law of Gravity
S7E15 / 08 Feb 2007
Monster in the Box
S7E16 / 15 Feb 2007
Fallen Idols
S7E17 / 22 Feb 2007
Empty Eyes
S7E18 / 29 Mar 2007
Big Shots
S7E19 / 05 Apr 2007
Lab Rats
S7E20 / 12 Apr 2007
Ending Happy
S7E21 / 26 Apr 2007
Leapin' Lizards
S7E22 / 03 May 2007
The Good, the Bad, and the Dominatrix
S7E23 / 10 May 2007
Living Doll
S7E24 / 17 May 2007
Season 8
Dead Doll
S8E1 / 27 Sep 2007
A La Cart
S8E2 / 04 Oct 2007
Go to Hell
S8E3 / 11 Oct 2007
The Case of the Cross-Dressing Carp
S8E4 / 18 Oct 2007
The Chick Chop Flick Shop
S8E5 / 01 Nov 2007
Who and What (I)
S8E6 / 08 Nov 2007
Goodbye and Good Luck
S8E7 / 15 Nov 2007
You Kill Me
S8E8 / 22 Nov 2007
Cockroaches
S8E9 / 06 Dec 2007
Lying Down with Dogs
S8E10 / 13 Dec 2007
Bull
S8E11 / 10 Jan 2008
Grissom's Divine Comedy
S8E12 / 03 Apr 2008
A Thousand Days on Earth
S8E13 / 10 Apr 2008
Drops Out
S8E14 / 24 Apr 2008
The Theory of Everything
S8E15 / 01 May 2008
Two and a Half Deaths
S8E16 / 08 May 2008
For Gedda
S8E17 / 15 May 2008
Season 9
For Warrick
S9E1 / 09 Oct 2008
The Happy Place
S9E2 / 16 Oct 2008
Art Imitates Life
S9E3 / 23 Oct 2008
Let It Bleed
S9E4 / 30 Oct 2008
Leave out All the Rest
S9E5 / 06 Nov 2008
Say Uncle
S9E6 / 13 Nov 2008
Woulda, Coulda, Shoulda
S9E7 / 20 Nov 2008
Young Man with a Horn
S9E8 / 04 Dec 2008
CSI-19 down
S9E9 / 11 Dec 2008
One to Go
S9E10 / 15 Jan 2009
The Grave Shift
S9E11 / 22 Jan 2009
Disarmed and Dangerous
S9E12 / 29 Jan 2009
Deep Fried and Minty Fresh
S9E13 / 12 Feb 2009
Miscarriage of Justice
S9E14 / 19 Feb 2009
Kill Me If You Can
S9E15 / 26 Feb 2009
Turn, Turn, Turn
S9E16 / 05 Mar 2009
No Way Out
S9E17 / 12 Mar 2009
Mascara
S9E18 / 02 Apr 2009
The Descent of Man
S9E19 / 09 Apr 2009
A Space Oddity
S9E20 / 16 Apr 2009
If I Had A Hammer
S9E21 / 23 Apr 2009
The Gone Dead Train
S9E22 / 30 Apr 2009
Hog Heaven
S9E23 / 07 May 2009
All In
S9E24 / 14 May 2009
Season 10
Family Affair
S10E1 / 24 Sep 2009
Ghost Town
S10E2 / 01 Oct 2009
Working Stiffs
S10E3 / 08 Oct 2009
Coup de Grace
S10E4 / 15 Oct 2009
Bloodsport
S10E5 / 29 Oct 2009
Death and the Maiden
S10E6 / 05 Nov 2009
The Lost Girls (III)
S10E7 / 12 Nov 2009
Lover's Lanes
S10E8 / 19 Nov 2009
Appendicitement
S10E9 / 10 Dec 2009
Better Off Dead
S10E10 / 17 Dec 2009
Sin City Blue
S10E11 / 14 Jan 2010
Long Ball
S10E12 / 21 Jan 2010
Internal Combustion
S10E13 / 04 Feb 2010
Unshockable
S10E14 / 04 Mar 2010
Neverland
S10E15 / 11 Mar 2010
The Panty Sniffer
S10E16 / 01 Apr 2010
Irradiator
S10E17 / 08 Apr 2010
Field Mice
S10E18 / 15 Apr 2010
World's End
S10E19 / 22 Apr 2010
Take My Life, Please!
S10E20 / 29 Apr 2010
Lost & Found
S10E21 / 06 May 2010
Doctor Who
S10E22 / 13 May 2010
Meat Jekyll
S10E23 / 20 May 2010
Season 11
Shock Waves
S11E1 / 23 Sep 2010
Pool Shark
S11E2 / 30 Sep 2010
Blood Moon
S11E3 / 07 Oct 2010
Sqweegel
S11E4 / 14 Oct 2010
House of Hoarders
S11E5 / 21 Oct 2010
Cold Blooded
S11E6 / 28 Oct 2010
Bump and Grind
S11E7 / 04 Nov 2010
Fracked
S11E8 / 11 Nov 2010
Wild Life
S11E9 / 18 Nov 2010
418/427
S11E10 / 09 Dec 2010
Man Up
S11E11 / 06 Jan 2011
A Kiss Before Frying
S11E12 / 20 Jan 2011
The Two Mrs. Grissoms
S11E13 / 03 Feb 2011
All That Cremains
S11E14 / 10 Feb 2011
Targets of Obsession
S11E15 / 17 Feb 2011
Turn On, Tune In, Drop Dead
S11E16 / 24 Feb 2011
The List
S11E17 / 10 Mar 2011
Hitting for the Cycle
S11E18 / 31 Mar 2011
Unleashed
S11E19 / 07 Apr 2011
Father of the Bride (1)
S11E20 / 28 Apr 2011
Cello and Goodbye (2)
S11E21 / 05 May 2011
In A Dark, Dark House (3)
S11E22 / 12 May 2011
Season 12
73 Seconds
S12E1 / 21 Sep 2011
Tell-Tale Hearts
S12E2 / 28 Sep 2011
Bittersweet
S12E3 / 05 Oct 2011
Maid Man
S12E4 / 12 Oct 2011
CSI Down
S12E5 / 19 Oct 2011
Freaks & Geeks
S12E6 / 02 Nov 2011
Brain Doe
S12E7 / 09 Nov 2011
Crime After Crime
S12E8 / 16 Nov 2011
Zippered
S12E9 / 07 Dec 2011
Genetic Disorder
S12E10 / 14 Dec 2011
Ms. Willows Regrets... (1)
S12E11 / 18 Jan 2012
Willows in the Wind (2)
S12E12 / 25 Jan 2012
Tressed to Kill
S12E13 / 08 Feb 2012
Seeing Red
S12E14 / 15 Feb 2012
Stealing Home
S12E15 / 22 Feb 2012
CSI Unplugged
S12E16 / 29 Feb 2012
Trends with Benefits
S12E17 / 14 Mar 2012
Malice in Wonderland
S12E18 / 21 Mar 2012
Split Decisions
S12E19 / 04 Apr 2012
Altered Stakes
S12E20 / 11 Apr 2012
Dune and Gloom
S12E21 / 02 May 2012
Homecoming
S12E22 / 09 May 2012
Season 13
Karma To Burn
S13E1 / 26 Sep 2012
Code Blue Plate Special
S13E2 / 10 Oct 2012
Wild Flowers
S13E3 / 17 Oct 2012
It Was a Very Good Year
S13E4 / 24 Oct 2012
Play Dead
S13E5 / 31 Oct 2012
Pick and Roll
S13E6 / 07 Nov 2012
Fallen Angels
S13E7 / 14 Nov 2012
CSI on Fire
S13E8 / 21 Nov 2012
Strip Maul
S13E9 / 28 Nov 2012
Risky Business Class
S13E10 / 12 Dec 2012
Dead Air
S13E11 / 16 Jan 2013
Double Fault
S13E12 / 23 Jan 2013
In Vino Veritas (I)
S13E13 / 06 Feb 2013
Exile
S13E14 / 13 Feb 2013
Forget Me Not
S13E15 / 20 Feb 2013
Last Woman Standing
S13E16 / 27 Feb 2013
Dead of the Class
S13E17 / 20 Mar 2013
Sheltered
S13E18 / 03 Apr 2013
Backfire
S13E19 / 10 Apr 2013
Fearless
S13E20 / 01 May 2013
Ghosts of the Past
S13E21 / 08 May 2013
Skin in the Game
S13E22 / 15 May 2013
Season 14
The Devil and D.B. Russell
S14E1 / 25 Sep 2013
Take the Money and Run
S14E2 / 02 Oct 2013
Torch Song
S14E3 / 09 Oct 2013
Last Supper
S14E4 / 16 Oct 2013
Frame by Frame
S14E5 / 23 Oct 2013
Passed Pawns
S14E6 / 30 Oct 2013
Under a Cloud
S14E7 / 06 Nov 2013
Helpless
S14E8 / 13 Nov 2013
Check In and Check Out
S14E9 / 20 Nov 2013
Girls Gone Wild
S14E10 / 27 Nov 2013
The Lost Reindeer
S14E11 / 11 Dec 2013
Keep Calm and Carry-On
S14E12 / 15 Jan 2014
Boston Brakes
S14E13 / 22 Jan 2014
De Los Muertos
S14E14 / 05 Feb 2014
Love for Sale
S14E15 / 19 Feb 2014
Killer Moves
S14E16 / 05 Mar 2014
Long Road Home
S14E17 / 12 Mar 2014
Uninvited
S14E18 / 19 Mar 2014
The Fallen
S14E19 / 02 Apr 2014
Consumed
S14E20 / 09 Apr 2014
Kitty
S14E21 / 30 Apr 2014
Dead in His Tracks
S14E22 / 07 May 2014
Season 15
The CSI Effect
S15E1 / 28 Sep 2014
Buzz Kill
S15E2 / 05 Oct 2014
Bad Blood
S15E3 / 12 Oct 2014
The Book of Shadows
S15E4 / 19 Oct 2014
Girls Gone Wilder
S15E5 / 09 Nov 2014
The Twin Paradox
S15E6 / 16 Nov 2014
Road to Recovery
S15E7 / 23 Nov 2014
Rubbery Homicide
S15E8 / 30 Nov 2014
Let's Make a Deal
S15E9 / 07 Dec 2014
Dead Rails
S15E10 / 14 Dec 2014
Angle of Attack
S15E11 / 21 Dec 2014
Dead Woods
S15E12 / 28 Dec 2014
The Greater Good
S15E13 / 04 Jan 2015
Merchants of Menace
S15E14 / 25 Jan 2015
Hero to Zero
S15E15 / 25 Jan 2015
The Last Ride
S15E16 / 27 Jan 2015
Under My Skin
S15E17 / 15 Feb 2015
The End Game
S15E18 / 15 Feb 2015
Ted Danson
D.B. Russell
George Eads
Nick Stokes
Jorja Fox
Sara Sidle
Eric Szmanda
Greg Sanders
Robert David Hall
Al Robbins
Wallace Langham
David Hodges
Jon Wellner
Henry Andrews
